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tcg: Fix generation of dupi_vec for 32-bit host 

The definition of INDEX_op_dupi_vec is that it operates on
units of tcg_target_ulong -- in this case 32 bits.  It does
not work to use this for a uint64_t value that happens to be
small enough to fit in tcg_target_ulong.

Fixes: d2fd745fe8
Fixes: db432672dc
Cc: qemu-stable@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-09-06 18:27:41 -07:00
parent f80d09b599
commit a5b30d950c
1 changed files with 8 additions and 4 deletions
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12
tcg/tcg-op-vec.c
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@ -252,10 +252,10 @@ TCGv_vec tcg_const_ones_vec_matching(TCGv_vec m)
void tcg_gen_dup64i_vec(TCGv_vec r, uint64_t a) void tcg_gen_dup64i_vec(TCGv_vec r, uint64_t a)
{ {
if (TCG_TARGET_REG_BITS == 32 && a == deposit64(a, 32, 32, a)) { if (TCG_TARGET_REG_BITS == 64) {
do_dupi_vec(r, MO_32, a);
} else if (TCG_TARGET_REG_BITS == 64 || a == (uint64_t)(int32_t)a) {
do_dupi_vec(r, MO_64, a); do_dupi_vec(r, MO_64, a);
} else if (a == dup_const(MO_32, a)) {
do_dupi_vec(r, MO_32, a);
} else { } else {
TCGv_i64 c = tcg_const_i64(a); TCGv_i64 c = tcg_const_i64(a);
tcg_gen_dup_i64_vec(MO_64, r, c); tcg_gen_dup_i64_vec(MO_64, r, c);
@ -280,7 +280,11 @@ void tcg_gen_dup8i_vec(TCGv_vec r, uint32_t a)
void tcg_gen_dupi_vec(unsigned vece, TCGv_vec r, uint64_t a) void tcg_gen_dupi_vec(unsigned vece, TCGv_vec r, uint64_t a)
{ {
do_dupi_vec(r, MO_REG, dup_const(vece, a)); if (vece == MO_64) {
tcg_gen_dup64i_vec(r, a);
} else {
do_dupi_vec(r, MO_REG, dup_const(vece, a));
}
} }
void tcg_gen_dup_i64_vec(unsigned vece, TCGv_vec r, TCGv_i64 a) void tcg_gen_dup_i64_vec(unsigned vece, TCGv_vec r, TCGv_i64 a)